With the development of society and production needs, the use of gear reducer is more and more extensive, in the textile transport, construction and other industries has a pivotal position, gear reducer generally for these equipment to drive and decelerate the effect.

Generally speaking, the gear is an important part of the gear reducer, the whole operation of the gear reducer is not reliable to a large extent depends on the processing accuracy and quality of the gear, so how to improve the quality of the gear reducer.

The shaft tooth accuracy of gear reducer is mainly related to motion accuracy, smoothness accuracy and touch accuracy. The gear hobbing process of the gear reducer uses the control of the common normal length and the gear ring diameter jump to ensure the motion accuracy, the control of the gear shape error and the base deviation to ensure the smooth precision of the work, and the control of the gear direction error to ensure the touch accuracy. At present, the gear reducer gear processing method is hobbing, shaving method, strict requirements, only this level of technology to produce high-precision gear, and shaving precision can calibrate the gear reducer hobbing precision to a great extent, so some errors in the hobbing project must be strictly controlled in order to produce high-quality gear.